From patchwork Wed May 2 20:34:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: oscar.mateo@intel.com X-Patchwork-Id: 10376483 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2046C6038F for ; Wed, 2 May 2018 20:34:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0EEE328F9F for ; Wed, 2 May 2018 20:34:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 021EE29007; Wed, 2 May 2018 20:34:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A2FB328F9F for ; Wed, 2 May 2018 20:34:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6D1816E688; Wed, 2 May 2018 20:34:30 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id E04646E5A1 for ; Wed, 2 May 2018 20:34:18 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 May 2018 13:34:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,354,1520924400"; d="scan'208";a="36380635" Received: from omateolo-linux.sc.intel.com ([10.3.229.22]) by fmsmga007.fm.intel.com with ESMTP; 02 May 2018 13:34:17 -0700 From: Oscar Mateo To: intel-gfx@lists.freedesktop.org Date: Wed, 2 May 2018 13:34:10 -0700 Message-Id: <1525293261-13613-12-git-send-email-oscar.mateo@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1525293261-13613-1-git-send-email-oscar.mateo@intel.com> References: <1525293261-13613-1-git-send-email-oscar.mateo@intel.com> Subject: [Intel-gfx] [PATCH 11/22] drm/i915/icl: Wa_1604302699 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Disable I2M Write for performance reasons. v2: Rebased on top of the WA refactoring v3: Added References (Mika) References: HSDES#1604302699 Cc: Mika Kuoppala Signed-off-by: Oscar Mateo Reviewed-by: Mika Kuoppala --- drivers/gpu/drm/i915/i915_reg.h | 4 +++- drivers/gpu/drm/i915/intel_workarounds.c | 5 +++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b7e5ca0..f6a38fd 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7227,7 +7227,9 @@ enum { #define GEN7_L3CNTLREG3 _MMIO(0xB024) #define GEN7_L3_CHICKEN_MODE_REGISTER _MMIO(0xB030) -#define GEN7_WA_L3_CHICKEN_MODE 0x20000000 +#define GEN10_L3_CHICKEN_MODE_REGISTER _MMIO(0xB114) +#define GEN7_WA_L3_CHICKEN_MODE 0x20000000 +#define GEN11_I2M_WRITE_DISABLE (1 << 28) #define GEN7_L3SQCREG4 _MMIO(0xb034) #define L3SQ_URB_READ_CAM_MATCH_DISABLE (1<<27) diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c index ffb0e30..bba43fd 100644 --- a/drivers/gpu/drm/i915/intel_workarounds.c +++ b/drivers/gpu/drm/i915/intel_workarounds.c @@ -750,6 +750,11 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv) I915_WRITE(SUBSLICE_UNIT_LEVEL_CLKGATE, (I915_READ(SUBSLICE_UNIT_LEVEL_CLKGATE) | GWUNIT_CLKGATE_DIS)); + + /* Wa_1604302699:icl */ + I915_WRITE(GEN10_L3_CHICKEN_MODE_REGISTER, + (I915_READ(GEN10_L3_CHICKEN_MODE_REGISTER) | + GEN11_I2M_WRITE_DISABLE)); } void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)